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Enthalpies of dilution for 1∶3 and 3∶1 electrolytes aqueous solutions

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Abstract

The enthalpies of dilution for aqueous solutions of [Co(cn)3)]Cl3, [Co(pn)3)]Cl3 and [Co(tn)3]Cl3, (whereen=1,2-diaminoethane,pn=1,2-diaminopropane, andtn=1,3-diaminopropane) have been measured at 298.15 K, and up to 1 mol kg−1+, using a new large isoperibol calorimeter by the “long-jump” method. Relative apparent molar enthalpies,291-01, have been extracted as an empirical equation relatingL Φ andm. We have compared our complex salts with the 3∶1 and 1∶3 aqueous systems found in the literature. Theoretical predictions for 1∶3 and 3∶1 electrolytes in the Restricted Primitive Model are also shown.

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This work was supported in part by CICYT (M.E.C., Spain) under Research Project No.: PB92-0553.

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Arsuaga, J.M., Fernández-Martín, F. & Núñez, J. Enthalpies of dilution for 1∶3 and 3∶1 electrolytes aqueous solutions. Journal of Thermal Analysis 47, 291–297 (1996). https://doi.org/10.1007/BF01982708

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